BLD: use latest stable OpenBLAS

* build the latest stable release
of OpenBLAS, v0.3.6; apparently
contains fixes for Skylake-related
issues reported downstream in NumPy

* pin Travis default Python to version
2.7, for now, to preserve our build
environment after they recently
bumped the default to 3.6

Author: tylerjereddy

.travis.yml

@@ -2,7 +2,7 @@ env:
     global:
         # The archive that gets built has name from ``git describe`` on this
         # commit.
-        - BUILD_COMMIT=v0.3.5
+        - BUILD_COMMIT=v0.3.6
         - REPO_DIR=OpenBLAS
         - PLAT=x86_64
         - WHEELHOUSE_UPLOADER_USERNAME=travis-worker
@@ -14,6 +14,7 @@ env:
         - MACOSX_DEPLOYMENT_TARGET=10.9
 
 language: python
+python: 2.7
 sudo: required
 dist: trusty
 services: docker

appveyor.yml

@@ -4,7 +4,7 @@ os: Visual Studio 2015
 
 environment:
   global:
-    OPENBLAS_COMMIT: v0.3.5
+    OPENBLAS_COMMIT: v0.3.6
     OPENBLAS_ROOT: c:\opt
     MSYS2_ROOT: c:\msys64
     WHEELHOUSE_UPLOADER_USERNAME: travis-worker